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Finding the Fourth Proportional to 247,287.70, 370,858.65 and 97,478.20

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Solution

The fourth proportional to 247,287.70, 370,858.65 and 97,478.20 is: 146,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,287.70 : 370,858.65 = 97,478.20 : x
  2. Step 2: Convert to fraction form
    247,287.70/370,858.65 = 97,478.20/x
  3. Step 3: Cross multiply
    247,287.70x = 370,858.65 × 97,478.20
  4. Step 4: Simplify right side
    247,287.70x = 36,150,633,656.43
  5. Step 5: Solve for x
    x = 36,150,633,656.43/247,287.70
  6. Step 6: Final answer
    x = 146,188.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.